A copper mirror whose surface has tarnished presents an effective complex refractive…

PHYSICS · Subjective · Fermi University Physics · Optics & Photonics · Condensed Matter, Materials & Soft Matter · Wave propagation and light in media

What an Instrument Can See, Ch The boundary as a two-port

Problem

A copper mirror whose surface has tarnished presents an effective complex refractive index

\tilde n = 0.90 + 2.50i

550\ \mathrm{nm}

, absorbing the effect of the thin oxide skin into a single number. Find the normal-incidence reflectance

\mathcal{R}

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